They accused him of talking "nonsense"...
They accused him of talking "nonsense", and they shouted and disagreed in his presence when he was ill (may my parents be sacrificed for him), until he ordered them to leave his room. That did not seem to be enough for them, and instead of returning to the right path and asking Allah's forgiveness for what they had done to His Messenger, and asking the Messenger for forgiveness as the Qur'an taught them, they went on criticizing him, despite all the care and kindness he had for them.
They did not appreciate him or respect him, and two days after having accused him of talking "nonsense", they criticized him for appointing Usamah as military commander. They forced him to come out in the appalling condition which the historians describe. Due to the severity of his illness, he had to walk with the support of two men, and then he had to swear by Allah that Usamah was a competent commander for the army.
Furthermore, the Messenger informed us that they had criticized him previously for appointing his father as a commander, which indicates that these people had had many previous confrontations with him, and that they were not willing to obey his orders or accept his judgment, rather, they were prepared to oppose him and confront him, even if such behavior went against the rules of Allah and His Messenger.
What leads us to believe that there was open opposition (to the orders of the Prophet), was that in spite of all the anger shown by the Messenger of Allah, and the fact that he himself tied the flag with his noble hand to the post and commanded them to march immediately, they were sluggish and reluctant to move, and did not go until he had died (may my parents be sacrificed for him).
The Prophet (s.a.w.) died feeling sorry for his unfortunate nation, which he feared would go backwards and end up in hell, and no one would be saved except a few, and the Messenger of Allah described them as a handful.
I am surprised that those angered the Prophet on that Thursday and accused him of talking "nonsense", and said, "It is sufficient for us that we have the Book of Allah,” when the Holy Qur'an states: "Say if you love Allah, then follow me and Allah will love you." (Holy Qur'an 3:31) As if they were more knowledgeable about the Book of Allah and its rules than he to whom it had been revealed.